[ Nov.2012 ] The man of the handmade mask shop recommended me to visit this Palazzo Contarini del Bovolo.
It is the end of 15th century building and the staircase remined them of the shell of a snail, they call it Snail Staircase.
It is bloody difficult to get here.
Situated near Campo Manin which is relatively easy to get to, but I cannot explain the way from there, sorry.
You cannot enter the building, but when I arrived there I made a noise of a surprise.
It is worth looking at it.